- 20 Mar 2026
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Managing Junk Mail in Inbox
- Updated 20 Mar 2026
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Messages in Inbox can be marked as Junk and automatically routed to the Junk folder upon receipt through spam filtering or by configuring a Message Inbox rule.
Spam filtering
Messages that come into Inbox that meet a number of common spam indicators are generally routed directly to the Junk folder in Inbox.
A combination of criteria may cause an email to be routed to Junk, such as:
Subject lines that are written in all caps
Content that includes a disclaimer about spam: "We're not SPAM!"
Image-only emails
Use of the word "free" in the subject line
Use of odd characters or numbers in words ("2day," "gre@t!").
⭐ Best practiceWork with your IT department to filter spam before it arrives to your email account and is forwarded into Slate. This significantly reduces the amount of junk mail that comes into Inbox.
Managing junk mail
Messages that do not have a spam score above 5 may end up in your Inbox without being automatically routed to the Junk folder. Individual messages may be marked as Junk through batch management or rules.
To batch manage junk messages:
Select Inbox in the Slate navigation bar. The Inbox page appears.
Use
Ctrlor⌘+Selectto select messages.Select the Batch Management icon
.Select Apply Actions.
Set the Action to Flag as Junk.
Select Submit.
Creating a Message Inbox rule
You can automate the flagging of messages as junk with a rule.
Go to Database → Rules.
Select New Rule.
Configure the following settings:
Name: Enter a name for the rule
Type: Configurable Joins
Category: Related
Base: Inbox
Rule Type: Junk
Rule Trigger: Select either Upon Message Receipt or Nightly Processing.
Folder: Choose an existing folder or select Other to create a new one.
Exclusivity Group: Leave blank, select an exclusivity group, or select Other to create a new one.
Status: Select Preview. The rule must be saved before it can be activated. Do not activate this rule until you are ready to make the rule live.

Select Save.
In the Filters section, add any desired filters.
💡 Tip
Use the Partial Match filter to scan for messages that contain specific terms or phrases. Use quotation marks to scan for an exact match on the phrase.
In the Action section, set the Junk Flag to either Set Junk Flag or Unset Junk Flag.
Select Save.
When ready to activate the rule, select it from the Rules summary page. The Edit Rule page appears.
Select Edit. an Edit Details popup appears.
Change Status to Active.
Select Save.
